Don't ask, don't tell - S3-E12
Continuity mistake: When Miranda blind dates Dwight Owens, he puts the beer on the table twice.
Continuity mistake: When Carrie leaves breakfast, the waitress disappears between shots. (00:03:32)
Audio problem: When Carrie is meeting with Sarah Michelle Gellar and she is told to guess which star is interested in being involved with her project, SMG mouths 'Warren Beatty' and not Matthew MConaughey as is heard.
Other mistake: When Carrie, Samantha and Miranda step outside of the hotel so Carrie can have a cigarette, she takes a couple of draws then throws it down on the step. She tries to stub it out with her shoe by twisting her foot on it but she (the actress) accidentally kicks the cigarette down the step, so she has to just pretend to still be stubbing it out.
Continuity mistake: Carrie is trying to drive a car up a hill and a grey car drives close to them very slowly. When the car is side by side to Carrie, the shot changes to a wide angle and the grey car has vanished.
Continuity mistake: When Carrie gets to the WB Studios and stops at the guard's place, the image alternates between close and wide shots. The cars and people surrounding Carrie are totally different depending on the shot.
Continuity mistake: When Carrie is on the WB set smoking, her handbag is next to the railing. When the guard arrives, the bag is closer to Carrie.
Continuity mistake: When Matthew McConaughey cries "That's bullshit, Carrie!" he extends his right arm. A shot later he's extending his left.
Continuity mistake: After Carrie says "Thank you, Matthew McConaughey", his hands have no continuity between shots.
Continuity mistake: When at WB Studios, the position of the paper on Carrie's windshield is close to the brim in one shot, and away in the following.
Continuity mistake: After the WB Studios guard puts a paper on Carrie's windshield, a grey car is driving parallel to hers. A shot later the car is behind Carrie's.
Continuity mistake: When Carrie arrives at WB Studios, the guard has no paper on his hand, but one suddenly appears in the following shot.
Continuity mistake: When Carrie arrives at WB Studio there's a red car exiting that disappears in the following shot.
Visible crew/equipment: When Sam steps off the blue car a big white rectangular object is reflected on the door. Surely some type of filming equipment, for it disappears in the wide angle.
Continuity mistake: When Sarah Michelle Gellar asks Carrie to guess, Sarah has her right arm under her chin, but it swaps to lowered in further shots.
Continuity mistake: When Sarah Michelle Gellar says she loves Carrie's shoes, Carrie's right arm is up. A shot later it's lowered.
Continuity mistake: Sarah Michelle Gellar's left arm is resting on the counter or not. Depending on the shot this changes back and forth.
Continuity mistake: When Mr. Dildo leaves the bar, the waiter in orange is on the left side. A shot later he is on the right side of the counter.
Continuity mistake: When Carrie leaves breakfast the woman behind her with a green tank top has her arms down behind the table. A shot later they are on the table.
Continuity mistake: Carrie leaves breakfast and lays some bills on the table. Charlotte reaches for them but a shot later she is holding the photos.
Answer: A popular brand of sexual lubricant. See http://www.k-y.com/index.jsp.
J I Cohen